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NASA's ROAD BACK TO THE MOON - Very Big rocket Launch - 2nd Sept 18:48

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  • Moderators, Recreation & Hobbies Moderators, Science, Health & Environment Moderators, Technology & Internet Moderators Posts: 90,695 Mod ✭✭✭✭Capt'n Midnight


    Two-hour launch window opens from 06:04 GMT on Wednesday, November 16.


    NASA TV using EST , add 5 hours to the times

    Tuesday, Nov. 15 

    6:30 a.m. – Coverage of U.S. Spacewalk 81 to install an IROSA (ISS Rollout Solar Array) modification kit on the starboard 6 truss at the International Space Station (spacewalk scheduled to begin at 8 a.m. EST and will last around 7 hours) (All Channels)

    3:30 p.m. – Coverage of the cryogenic fueling of the Space Launch System for launch on the Artemis I mission (All Channels)

    10:30 p.m. – Coverage of the launch of the Space Launch System and the Orion spacecraft on the Artemis I mission (Launch scheduled at 1:04 a.m. EST Nov. 16) (All Channels)

    Wednesday, Nov. 16 

    4 a.m. – Artemis I post-launch news conference (time subject to change) (All Channels)

    8:30 a.m. – Artemis I Orion outbound trajectory correction burn coverage (outbound trajectory correction burn scheduled at 8:51 a.m. EST) (All Channels)

    10 a.m. – Artemis I Orion first imagery coverage (All Channels)



  • Registered Users Posts: 9,369 ✭✭✭irishgeo


    im off Wednesday so im setting the alarm for 5am.



  • Moderators, Recreation & Hobbies Moderators, Science, Health & Environment Moderators, Technology & Internet Moderators Posts: 90,695 Mod ✭✭✭✭Capt'n Midnight


    NASA’s YouTube channel, they are loading the H2 slowly.

    eight and a half hours to liftoff.

    still chilling down O2



  • Registered Users Posts: 39,437 ✭✭✭✭Itssoeasy


    In a hold due to issues with the range and that equipment needing to be fixed. They went old school a couple of hours ago to fix a leak with a couple of people and a big wrench.



  • Registered Users Posts: 39,437 ✭✭✭✭Itssoeasy


    Looks like we might be a go. Launch director is polling the room and so far it’s a GO.



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  • Registered Users Posts: 39,437 ✭✭✭✭Itssoeasy


    count is going to be resumed.



  • Registered Users Posts: 18,064 ✭✭✭✭namloc1980


    T-10 minutes!!



  • Registered Users Posts: 39,437 ✭✭✭✭Itssoeasy


    6:47 am is new launch time.



  • Registered Users Posts: 39,437 ✭✭✭✭Itssoeasy


    Well they got past the leak.



  • Registered Users Posts: 18,064 ✭✭✭✭namloc1980


    Amazing.



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  • Registered Users Posts: 6,737 ✭✭✭knucklehead6


    She fairly jumped off that pad!



  • Registered Users Posts: 39,437 ✭✭✭✭Itssoeasy


    Amazing stuff after a few false starts.



  • Registered Users Posts: 18,064 ✭✭✭✭namloc1980


    TLI burn ongoing sending Orion on a trajectory to the Moon!



  • Registered Users Posts: 39,437 ✭✭✭✭Itssoeasy


    The last Apollo moon mission (17) was a night launch in 1972 and the first launch of Artemis was a night launch nearly 50 years to the day. There was some giddy up from it compared to the Saturn V which looked like it took a while to get going.



  • Registered Users Posts: 3,558 ✭✭✭Breezy_


    "We all rise together"

    stupid



  • Registered Users Posts: 1,234 ✭✭✭Kalyke


    Any one got a link to the flight path it took after take off?



  • Moderators, Social & Fun Moderators Posts: 12,569 Mod ✭✭✭✭JupiterKid


    Very pleased to see Artemis/SLS launch successfully after many delays. 🥳🥳 🚀 This could really represent the start of a new era in human spaceflight.

    Humanity must explore. It’s in our very DNA. 👍👍



  • Registered Users Posts: 18,064 ✭✭✭✭namloc1980


    Amazing raw power:




  • Registered Users Posts: 9,369 ✭✭✭irishgeo


    When is it due to arrive at the moon.



  • Registered Users Posts: 39,437 ✭✭✭✭Itssoeasy


    In the Apollo era it took 4 days to get to the moon so around the same I’d assume.



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  • Registered Users Posts: 1,688 ✭✭✭firemansam4


    Total idiot here when it comes to all the technical stuff that goes in to making this all possibe. But I was thinking about the whole Artemis project and I wonder why they are near enough just copying the Apollo missions using the same expensive methods they used back then?

    The mission will be dependent on Starship being successful for the lander, but then if that happens it will make all the expense up until now unnecessary. If Starship is successful then we have a way to deliver much larger payloads to LEO and beyond.

    Why not then just build a small refuelling depot in LEO. Maybe with crew transfer facilities a little like the ISS, then construct a spacecraft that can make a trip from there to the moon and back?

    Is any of this in any way feasible?



  • Moderators, Recreation & Hobbies Moderators, Science, Health & Environment Moderators, Technology & Internet Moderators Posts: 90,695 Mod ✭✭✭✭Capt'n Midnight


    Saturn V used hydrogen so they could send a payload to the moon without needing to assemble smaller parts in orbit, and then went on to rendezvous stuff in orbit around the moon anyway. 21st century tech in the 1960's. Like Star Wars the goal was to have something the Russians couldn't do.

    Gemini could have gone to the moon and returned directly on a single rocket https://www.wired.com/2012/05/gemini-on-the-moon-1962/

    Or having learnt orbital rendezvous they could have used smaller simpler rockets to assemble the moonshot in low earth orbit.

    NASA's insistence on Lunar Orbit Rendezvous was one of many options.

    If the objective was to land two men on the moon, the same thing could be accomplished in a single Saturn C-5 launch on a direct flight using either a Gemini capsule or two-man Apollo-shaped capsule. LOR introduced development of an entirely new LM spacecraft, and the complexities of lunar orbit rendezvous and docking - all for the sake of retaining the Apollo capsule design. Use of either Gemini or a 2-man Apollo shape would allow the same mission to be accomplished with the same booster, and a lot more simply and probably earlier.

    ...

    Apollo was one of the great technical endeavors of the 20th Century. In the United States, it left remarkably little legacy. The spacecraft and launch vehicles developed at such enormous expense were abandoned and replaced by pursuit of a chimera - a fully reusable space shuttle. For the hundreds of thousands of industry and government workers that contributed to the project, it was one of the greatest periods of their lives. The generation that had learned how to get things done quickly in World War II were again called to action in the prime of their lives. Compare the schedule of Apollo - seven months from the decision to go ahead to issuance of all major contracts for the spacecraft, rocket stages, and launch site - to NASA's current performance. There were giants in those days - we shall not see their like again.

    The SLS rocket's main payload is pork to get senators re-elected. No new technology worth talking about. Hardware changed just enough so it didn't look like you copied the 1970's homework.

    http://www.astronautix.com/s/shuttlec.html Shuttle-C could do most of what SLS does with minimal development costs as all the hardware was human rated. But then there wouldn't be a need for $20Bn to change the SRB's from 4 to 5 segments or from 3 to 4 RS-25 engines, and change the diameter slightly so the existing shuttle fuel tanks couldn't be reused.

    Using 3 of the old shuttle SRB's would have meant 12 segments instead of 10, more umph for a tiny cost.

    So yes almost all of the development costs were wasted. (taking inflation into account the new single-use RS-25 engines cost more than the reusable ones)



  • Registered Users Posts: 18,064 ✭✭✭✭namloc1980


    Artemis I approaching Moon with closest approach at around 12:57 pm today Irish time.




  • Registered Users Posts: 18,064 ✭✭✭✭namloc1980


    Earth and Moon from Artemis




  • Registered Users Posts: 39,437 ✭✭✭✭Itssoeasy


    Live coverage of the splashdown of Orion back to earth.



  • Registered Users Posts: 39,437 ✭✭✭✭Itssoeasy


    Cm and European service module have separated and entry interface is around 15 minutes from now.



  • Registered Users Posts: 39,437 ✭✭✭✭Itssoeasy


    They are in blackout(the first of two) and waiting for resumption of signal.



  • Registered Users Posts: 39,437 ✭✭✭✭Itssoeasy


    There are showing a camera out the window showing the capsule reentering.



  • Registered Users Posts: 39,437 ✭✭✭✭Itssoeasy


    There has been visual confirmation of the spacecraft from planes in the air.



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  • Registered Users Posts: 39,437 ✭✭✭✭Itssoeasy


    And we have three main parachutes open.



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